RU148906U1 - Microwave waveguide, EHF - Google Patents

Abstract

1. A waveguide connection microwave, EHF, containing the wall of the block with a waveguide channel, on both sides of which are placed coaxial waveguide transitions of rectangular cross section, or waveguides coaxially mounted on four bushings or studs, sealing and two contact pads, characterized in that the bushings or the studs are pressed and sealed coaxially and parallel to the waveguide channel of the microwave block wall with a thickness of 1 / 4λ of the wavelength of the signal, and the mounting diameters of the fixing screws or bushings are made with high accuracy and alignment. 2. A waveguide connection of microwave, EHF according to claim 1, characterized in that it allows the fastening of both coaxial waveguide transitions and waveguides in any pair combination and from a small section of the waveguide path to a large one. 3. The waveguide connection of a microwave, EHF according to claim 1, characterized in that it allows independent mounting and removal of coaxial waveguide junctions and waveguides on the outer and inner walls of the microwave block.

Description

The utility model relates to the microwave, EHF technique and can be used in waveguide paths when transmitting electromagnetic waves from the inside of the unit through the walls of the case of integrated microwave, EHF products, as well as in the development of electronic devices.

A waveguide connection is known, including two segments of a rectangular waveguide, at the ends of which there are flanges connected to each other through a quarter of the waveguide wall and two throttle grooves oriented in opposite directions starting from the longitudinal axis of the waveguide (see USSR author's certificate No. 1429863, class A1 H01P 1/4 ... 1987). The device is complex in design and increased in size due to the spacing of the mounting holes outside the throttle grooves, which contradicts the requirements of GOST 13317-89.

A device is known for connecting non-circular waveguides, including segments of the waveguide on which the flanges are fixed and a centering sleeve mounted on the flanges, on which protrusions are made coaxially to the segments of the waveguide under the centering sleeve, and a pin is inserted into each flange, the end of which is located in a longitudinal groove ( see USSR author's certificate No. 1563541, class A1 H01P 1/04 ... 1988).

The disadvantage of this device is the complexity and bulkiness of the design, as well as the inability to use to connect the CVC and waveguides with a large cross section of the waveguide channel.

The objective of the utility model is to simplify the design, ensure reliable radio-tightness and universality of the design, which allows independent connection of both coaxial-waveguide junctions (CVCs) of rectangular cross section and waveguide channels.

This is achieved by the fact that on the wall of the block with the waveguide channel, rectangular-section coaxial waveguide transitions (CVCs) or waveguides mounted on four bushings or studs, a sealing and two contact gaskets are placed on both sides of the block, while the bushings or studs are pressed and sealed coaxially and parallel to the waveguide channel of the wall of the microwave block with a thickness equal to ¼λ, the wavelength of the signal, and the mounting diameters of the fixing screws and bushings are made with high accuracy and alignment.

In FIG. 1 shows a microwave waveguide connection, a side view with cuts along the axis of the wall of the microwave unit body and local breakouts on the HF;

In FIG. 2 - connection option using studs;

In FIG. 3 - section A-A.

The waveguide connection of the microwave, EHF contains the wall of the microwave unit 1 with the waveguide channel 2, parallel to the axis of which four step-through holes are drilled for fixing the bushings 3 or studs 4. The smaller diameter is with tolerances for pressing in, and the large diameter is for soldering. The axis of the holes for the bushings 3 or studs 4, depending on the dimensions of the rectangular waveguide channel 1 (see Fig. 3), are bored with the dimensions of the center-to-center distances and the location relative to the walls of the waveguide channel 2 in accordance with the requirements of GOST 13317-89.

The inner working surface 5 of the microwave unit and the surface 6 of the bore on the outer surface have improved roughness to ensure reliable contact, radiocontact and tightness. On the outer surface of the microwave unit 1 there is an annular groove with a sealing gasket 7, which ensures the tightness of the block. The surface of the walls of the microwave unit external and internal have a protective coating such as O-Vi (tin-bismuth) or similar, which also provides reliable soldering of the bushings 3 or studs 4 after pressing.

The waveguide microwave connection works as follows. From the radio devices inside the unit, a signal is supplied to the waveguide channel in the block wall. The signal enters through a communication line made in the form of a waveguide of rectangular cross-section or a round armored cable with a coaxial waveguide transition (CVC) at the end. Through the waveguide channel, in the wall of the block, the signal enters the outside of the block and there, with the help of a CVC or waveguide connected to the junction, it enters the terminal actuator (block, module, antenna head).

The proposed utility model ensures the accuracy of the connection, the radio tightness, as well as the simplicity and versatility of the design.

Used sources:

1 Copyright certificate of the USSR No. 1429863, cl. A1 H01P 1/4 ... 1987

2 USSR Copyright Certificate No. 1563541, class A1 H01P 1/4 ... 1988

3 GOST 13317-89 Elements for connecting microwave paths of radio measuring instruments

Claims (3)

1. A waveguide connection microwave, EHF, containing the wall of the block with a waveguide channel, on both sides of which are placed coaxial waveguide transitions of rectangular cross section, or waveguides coaxially mounted on four bushings or studs, sealing and two contact pads, characterized in that the bushings or the studs are pressed and sealed coaxially and parallel to the waveguide channel of the microwave block wall with a thickness of 1 / 4λ of the wavelength of the signal, and the mounting diameters of the mounting screws or bushings are made with high accuracy and alignment. 2. The microwave, EHF waveguide connection according to claim 1, characterized in that it allows the fastening of both coaxial waveguide transitions and waveguides in any pair combination and from a small section of the waveguide path to a large one. 3. The microwave, EHF waveguide connection according to claim 1, characterized in that it allows independent mounting and removal of coaxial waveguide transitions and waveguides on the outer and inner walls of the microwave block.

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